/*
 * Javlov - a Java toolkit for reinforcement learning with multi-agent support.
 * 
 * Copyright (c) 2009 Matthijs Snel
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package net.javlov;

public class ContinuingRewardStatistic implements Statistic {

	protected double[] rewards;
	private int step;
	
	public ContinuingRewardStatistic(int steps) {
		rewards = new double[steps];
		step = 0;
	}
	
	@Override
	public void init() {
		rewards = new double[rewards.length];
		step = 0;
	}

	@Override
	public void reset() {
		rewards = new double[rewards.length];
		step = 0;
	}

	@Override
	public void update(State s, Action a, double reward) {
		rewards[step++] = reward;		
	}
	
	public double[] getRewards() {
		return rewards;
	}
}
